Postage shipping cost also includes 4.3% bank fee, which
can be returned if you pay us by wire transfer (bank transfer) or
Bitcoin. The fee cover the cost of receiving the
banking charges. You can find more information about it in our FAQ.

Storage fee

You can pay for additional space if you need it. If you go over
the size of the mailbox you get charged $1 per
day for each additional 18 cubic feet of storage space used